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path: root/drivers/net/enic/vnic_dev.c
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Diffstat (limited to 'drivers/net/enic/vnic_dev.c')
-rw-r--r--drivers/net/enic/vnic_dev.c53
1 files changed, 42 insertions, 11 deletions
diff --git a/drivers/net/enic/vnic_dev.c b/drivers/net/enic/vnic_dev.c
index 69b9b70c7da..d43a9d43bbf 100644
--- a/drivers/net/enic/vnic_dev.c
+++ b/drivers/net/enic/vnic_dev.c
@@ -23,6 +23,7 @@
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/if_ether.h>
+#include <linux/slab.h>
#include "vnic_resource.h"
#include "vnic_devcmd.h"
@@ -573,22 +574,18 @@ int vnic_dev_raise_intr(struct vnic_dev *vdev, u16 intr)
return err;
}
-int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr)
+int vnic_dev_notify_setcmd(struct vnic_dev *vdev,
+ void *notify_addr, dma_addr_t notify_pa, u16 intr)
{
u64 a0, a1;
int wait = 1000;
int r;
- if (!vdev->notify) {
- vdev->notify = pci_alloc_consistent(vdev->pdev,
- sizeof(struct vnic_devcmd_notify),
- &vdev->notify_pa);
- if (!vdev->notify)
- return -ENOMEM;
- memset(vdev->notify, 0, sizeof(struct vnic_devcmd_notify));
- }
+ memset(notify_addr, 0, sizeof(struct vnic_devcmd_notify));
+ vdev->notify = notify_addr;
+ vdev->notify_pa = notify_pa;
- a0 = vdev->notify_pa;
+ a0 = (u64)notify_pa;
a1 = ((u64)intr << 32) & 0x0000ffff00000000ULL;
a1 += sizeof(struct vnic_devcmd_notify);
@@ -597,7 +594,27 @@ int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr)
return r;
}
-void vnic_dev_notify_unset(struct vnic_dev *vdev)
+int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr)
+{
+ void *notify_addr;
+ dma_addr_t notify_pa;
+
+ if (vdev->notify || vdev->notify_pa) {
+ printk(KERN_ERR "notify block %p still allocated",
+ vdev->notify);
+ return -EINVAL;
+ }
+
+ notify_addr = pci_alloc_consistent(vdev->pdev,
+ sizeof(struct vnic_devcmd_notify),
+ &notify_pa);
+ if (!notify_addr)
+ return -ENOMEM;
+
+ return vnic_dev_notify_setcmd(vdev, notify_addr, notify_pa, intr);
+}
+
+void vnic_dev_notify_unsetcmd(struct vnic_dev *vdev)
{
u64 a0, a1;
int wait = 1000;
@@ -607,9 +624,23 @@ void vnic_dev_notify_unset(struct vnic_dev *vdev)
a1 += sizeof(struct vnic_devcmd_notify);
vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait);
+ vdev->notify = NULL;
+ vdev->notify_pa = 0;
vdev->notify_sz = 0;
}
+void vnic_dev_notify_unset(struct vnic_dev *vdev)
+{
+ if (vdev->notify) {
+ pci_free_consistent(vdev->pdev,
+ sizeof(struct vnic_devcmd_notify),
+ vdev->notify,
+ vdev->notify_pa);
+ }
+
+ vnic_dev_notify_unsetcmd(vdev);
+}
+
static int vnic_dev_notify_ready(struct vnic_dev *vdev)
{
u32 *words;